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\f0\fs20 \cf0 Qt is a comprehensive cross-platform C++ application framework.  Qt 4.3 introduces new features and many improvements over the 3.x series.  See http://doc.trolltech.com/4.3/qt4-intro.html for details.\
\
The Qt 4.x series is not binary compatible or source compatible with the 3.x series.  For more information on porting from Qt 3 to Qt 4, see the http://doc.trolltech.com/4.3/porting4.html web site.}